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- zBitVector
- ============================================================================
-
- Summary Non-view class for managing bitmapped vectors.
-
- Remarks zBitVector provides an implementation of a bit vector object.
- Bit vectors are bit-mapped structures useful for storing
- boolean values. Boolean values are values that can only have
- two states, true and false. zBitVector can hold up to 65535
- different values.
-
-
- ZBITVECTOR::ZBITVECTOR
- -----------------------------------------------------------------------
-
- Summary Construct bit vectors from bit sets or other objects.
-
- Syntax zBitVector(size_t aNumBits);
- zBitVector(const zBitVector &aVector);
-
- Remarks The extended bit vector class allows you to store up to
- 65,535 bit states. The constructor needs to know how many
- flags you need to store before it can create the object.
- The second constructor is a copy constructor for objects
- that have aVector as a parent.
-
-
- ZBITVECTOR::~ZBITVECTOR
- ------------------------------------------------------------------------
-
- Summary Destroys the extended bitmapped vector.
-
- Syntax ~zBitVector();
-
- Remarks Destroys the extended vector and frees all memory.
-
-
- ZBITVECTOR::SET, ZBITVECTOR::RESET
- ------------------------------------------------------------------------
-
- Summary Change the state of a particular bit.
-
- Syntax void set(size_t aBit);
- void reset(size_t aBit);
- void toggle(size_t aBit);
-
- Remarks The first function sets the 'aBit' bit to on regardless of
- the current state. The second one sets the 'aBit' bit to
- off regardless of the current state. The third one changes
- the state of the bit. If the bit is on, it is turned off.
- If the bit is off, it is turned on.
-
-
- ZBITVECTOR::HAS
- ------------------------------------------------------------------------
-
- Summary Checks the state of a bit.
-
- Syntax Boolean has(size_t aBit) const;
-
- Remarks Returns True if the 'aBit' bit is set in the vector, False
- if not. Note that this only checks the state of the bit.
-
-
- ZBITVECTOR::CAPACITY
- ------------------------------------------------------------------------
-
- Summary Returns the number of bits that can be used.
-
- Syntax size_t capacity() const;
-
- Remarks Returns the number of bits that this vector can hold. This
- number can be predetermined as in the 16 and 32 bit vectors
- or defined at runtime (as in the extended version).
-
-
- ZBITVECTOR::CLEARALL, ZBITVECTOR::SETALL
- ------------------------------------------------------------------------
-
- Summary Clear all bits in the vector.
-
- Syntax void zBitVector::clearAll();
- void zBitVector::setAll();
-
- Remarks The first function clears all bits in the extended vector.
- The second method sets all bits to on.
-
-
- ZBITVECTOR::ERROR
- ------------------------------------------------------------------------
-
- Summary Returns the error state of the vector.
-
- Syntax int error();
-
- Remarks Returns the error state of the vector. It will be 0 or
- ENOMEM if there wasn't enough memory top perform the
- requested operation. Note that this resets the error flag.
-
-
- ZBITVECTOR::OPERATOR[]
- ------------------------------------------------------------------------
-
- Summary Return a state of a particular bit.
-
- Syntax Boolean operator[](size_t aBit) const;
-
- Remarks Returns true if the aBit bit is set and False otherwise.
- This is just an alias for the has() function. Note that
- a state is retrieved and not a reference to the bit. This
- means that you cannot use array-like syntax to modify the
- bit, you can just test it.
-
-
- ZBITVECTOR::OPERATOR=
- ------------------------------------------------------------------------
-
- Summary Assigns bit-mapped vectors to one another.
-
- Syntax zBitVector& operator=(const zBitVector &aVector);
-
- Remarks Assignment operator: assigns values of vectors of the same
- type. Note that if the capacity of the current object
- is not enough, the vector will not be expanded, but it will
- be truncated to fit in. Also note that the assignment
- operation does reset all flag states before the copying,
- which means that is the new vector is shorter, the excess
- bits in the current one will be reset to 0.
-
-